I'm moved by all the supportive emails, donations and pledges that have come in since I published the last video. You guys have basically changed the entire equation over night and have given me a lot more hope for the near future! Thank you all so so much!

The name "RCA" connectors comes from the name Radio Corporation of America, which was the company that basically began the age of radio and then television, and then color tv, in the United States. They were located in New York City, and literally created the radio and television broadcast industry, by either buying up every electronics-related patents and inventions, or inventing them (as in the case of NTSC color tv) in their own laboratories. They also invented the 45-rpm vinyl record format, in 1949. They invented the connector as a simple method of making internal connections in their radio and phonograph consoles. The connector became very popular, and has been called the "RCA" (or "phono") connector ever since. There is a wikipedia entry called 'RCA connector' where you can find its entire history.

You sound much, much more cheerful and energetic in this video, good stuff man, good stuff.

well done! I had never seen a Nokia cassette player in my life!

"the 2 open 2 close" switch configuration is called "double pole double throw" or simply "DPDT" here in the USA but I just watched all three of those videos and can't remember from which one the switch was incorporated... ahaha anyways, great videos, the intro to them are awesome as well! peace.

Thanks for sharing this. I just finished adding bluetooth to a Sony CFS-930 as a birthday present for my sister. I used (I think) the same bluetooth module, with an LM317-based regulator to drop the internal 9-10V down to 3.7V, and 4-pole dual-throw (4P2T or 4PDT) switch to handle the connections. The tape deck still works, the radio still works and, with a flick of the new switch on the back, the bluetooth works! (with some noise from a ground loop somewhere). Your videos were a great guide and I found them very helpful. Thanks again!

In Belgium we use the name Cynch too. and the certain microphones you talk about that need to be pre amped are only condenser microphones.

i found this video and im fucking glad, this is exactly what i need cos earlier today my neighbour just asked if i could help figure a bluetooth option for his old Sony mp3/tape player he loves dearly. as a sort of Yes guy i did but i knew i was in trouble as soon as i realised the line-in/Aux missing,not even an RCA connectors at the back🤣.my hope was to simply get him a 5.0 bluetooth module from Amazon to serve as the middle man between SONY and his SAMSUNG smartphone . well anyway its a blessing to find GEMS on YT from time to time like some brilliant ,overly generous person sharing a library of wealth of knowledge..just priceless and inspiring!!

Its not too often I hear RCA these days with the move towards HDMI and Digital Audio, but the term still gets used (though sometimes people drop the name in favor of what the function of the RCA jacks do, like AUX for AUxilery inputs or Phono for Record Player inputs on stereos/amps)

Very good! I want to do this to my old stereo which also has 2 RCA line in connectors

The name "Cinch" is also used in Poland. Cinch is also used to name a peace of a horse saddle (the strap you put around the horses belly). No idea how those are similar.

I loved this project - there is far too much useful stuff that gets discarded even though it could be upgraded like this. Just set up my Patreon account so I can help support your videos - keep them coming!

In my part of the US they are either "RCA" connectors, or some older guys call them "phono plugs", as they old connections from phonographs often used the same type of plug, although they were usually black and mono, so only one cable carrying a single channel of audio. Some older systems used the same connector style as RCA for things like the antenna, loudspeakers, etc.

Another great video. Glad things are looking up for you. Maybe on day, you can buy you're own home( a fixer upper) and have a lot more projects to share w/ you're subscribers.

in Slovenia is also called činč

RCA in the UK. Cinch are a connector manufacturer...

I've learned some new things! I've done a few of these hacks before. All with the TDA7492P 50W+50W Wireless Bluetooth 4.0 Audio Receiver Digital Amplifier Board. I have been experiencing some wierd noise (tied to the rpm of the engine) when I use that card in my car stereo. Maybe it's because I'm using a shitty 12v cigarette plug? Are those plugs giving bad dc?

Cinch is actually used in Czech Republic as well (or at least was when people still used it, ...).

Dude, those soundtracks are something else!:)

just wanted to say a massive thanks I've managed to do this on an 80s boom box and it worked perfectly even without implenting switches and you don't need to press play . thanks again

And now I see you have already retro-fitted Bluetooth to an old boom box!

And I also love American and Japanese engineering to, and this channel is excellent!

Thanks for the inspiration, AUX line-in and usb power added to an old Sony hi-fi. It is now the speakers for my PC!

I'm in the process of doing this to my 20yrold aiwa boom box...I just discovered I can use the mic input as aux (yes 20yrs ago Aux input was not a thing on all radios ) if I push play on the tape deck...yeah no more radio..I even took swapped out the speakers for some Kenwood's and now I gotta get inside to bypass no RCA so I can add an eq a amp and some boom.

I love this! Gonna try it on my old hifi speaker, thank you!

I tend to believe, that "cinch" has Spanish origins, and denotes a strap that encircles the horse barrel in order to hold the saddle. And after this word has been adopted in English and some other languages, it obtained a more generic meaning "to tightly encircle something". Like, for example, a type of corset - "waist cincher".

very nice audio inputs hacks - I really like how you explain and do the hacks. 10+

"cinch" (for rca conecotrors) is also used in other post-comunistic countries like Czech republic or Slovakia

Not only do you not want to have to worry about the internal battery of the BT receiver being unchargeable after so many years, but even having to charge it separately would be a pain in the butt; it ought to act like it was part of the boombox all along. But then you could use the boombox's power supply to recharge it either from mains or from the boombox's batteries, but even that can present at least one overcomplexity problem: that the eventual nonrechargeability of that battery will come back to bite you. So yeah, I agree, ideally this would be best... but then of course there's that problem of audio noise that can come back to bite you as well. So hmm... "6 vs. half a dozen," eh? I like that you used the USB charger to keep charging receiver's battery while the boombox is powered by mains, but that doesn't address trying to get it done with the D cells, nor does it fix the eventual nonrechargeability, so it would be good to still find a more elegant/permanent solution. I guess there's still the buying of a modern combo boombox that already has these features, but there are only like maybe 2 models like this, if I remember right, so our choices are pretty limited. Although... maybe only 2 choices are all we need if they're good machines.

that last song/music sounded like what Cyriak would use in his videos lol - freaky

Činč name for RCA is used on Balkan also

Nice job and I love your accent

Here in Bulgaria, we call them чинч, which is pronounced the same way. When I was working as an IT in Croatia, they also called them chinch

In Poland it is also Chinch, and nobody would call it RCA :)

Your videos are amazing! I was wondering if I could bypass the AM radio, since no one really ever listens to that anyhow, and place a line in AUX there? I don't like adding switches to my faceplate, so using the AM radio setting switch is what I'm trying to accomplish. Are there any issues with AM being amplified strangely or something? I would be fine with pulling the AM guts.

Great video, thanks a bunch! I will try the same on a Panasonic RX E300 soon....

In Lithuania we call RCA connectors "tulips" because the RCA plug looks like a tulip.

How would you Install a Bluetooth into a radio from the 1920s with tubes in them

I will give this a try, I have decent stereo system which maybe will soon get used again, Thank You.

+The Post Apocalyptic Inventor In Poland RCA connectors are also called "czincz" probably from German.

The Rca jacks are nicer to use than some connectors, a 5 pin Din was typical on older systems, not used so often now.

In holland it's mostly called tulips connectors or interlink cables..

We also use the same term for RCA here in Croatia.

dunno.. In Germany I just say RCA in.. cinch is also used in Netherlands.. it's just an abbreviation for RCA or tulip plug

We call them exactly the same in Bulgaria - chinch ;)

in Slovakia we call it "cinch" as well :)

Great explanation.

Hey, guys. Using this tutorials, I was able to let the line-in work in my old Panasonic RX-DT37. (However, I just replaced the radio with line-in there) But now I am digging into a Sharp WQ-750HT(BQ) , couldn't find manual online, but it's OK. So I was able to understand, what's going where (thanks to this tutorial and 2 previous parts) but when I connect the line-in, instead of a tape this time, the sound is so distorted. Tried with radio as well - the result is the same. May it be, that I miss something? Like, mb, some resistors must be included for some models?

I understand it's a more accessible project when you use a simple USB charger on AC to power things, but I think I would have preferred using a DC-DC buck converter to go from the unit's internal power, then it could have run the bluetooth from either AC or battery. Then again, the unit will probably never actually be used on battery. I think if I were using a unit like that much, I would put some 18650 lithium cells in along with charging circuitry - rather than buy C or D cells or whatever it is using.

I live in Germany. I'm used to calling these RCA/Cinch connectors "Bananenstecker" (= Banana connectors). Don't ask me why. seems be some remnant artifact from way back when phone operators were using plugs to switch phone connections on a switchboard. I only use Cinch when shopping around because it specifically means this type of RCA connector. Where as Banana connectors refer to a bunch of similar connectors. The whole Connector terminology landscape is a whole clusterfuck. A mish mash of English and German official names and their colloquialisms. Sometimes it's hard to know WTF you are talking about. I prefer the Englisch terminology. #WelcomeToGermany

wow i wish i had someone like you near me i would pay you to do this with my sony

In Poland we also pronounce "cinch" in the same, incorrect way ;P - so that name is used outside Germany ;).

Thank you for doing this!

In Czech we are using "cinch" too.

Sorry to be a pedant but thought you might like to know that "backside" in common English (UK) usage means bottom, butt, arse , buttocks etc. Commonly, the expression you need is "rear", "rear side", "reverse", "reverse side" or just "back" (without the side!). Not that I'd want to really change your charming and idiosyncratic way of speaking.

Great information here loved the video just one thing with a hi fi cd system where it has a line in RCA red and white and you have a separate cassette deck can you record CDs on to a blank cassette

That's A Lot Of Work To Go Through. I Added Bluetooth To.My Old school.Panasonic Akasc 630 Stereo System & I Just Have The Bluetooth Unit Lying By The Stereo.

Love this channel. I will for sure donate at the end of the month when I get paid. PLEASE TELL ME THE SYNTH MUSIC. Is it kraftwerk? please tell me!

This one is above my skill level 8P

I enjoyed this video very much indeed. I have a question for you. I have heard that in Norway the FM transmission have ended and have taken its place the DAB system instead and all the receiver with FM are now practically dead. Do you know if it will be possible for us still eny

very good i need to do this

Is it possible to show us how to modify an existing line-in RCA which is only for tape recording so that external audio sources can be played on such boombox? Thank you.

We also say cinch in Belgium

What is the music from your phone that you tested the line-in and bluetooth with?

Lolol you sound like klaus from American dad

Hoping you can help. I have a security camera that has a weak speaker. I only have access to the black and red speaker wires. The camera is not able to be opened. Is there anyway to connect these two wires to a Bluetooth transmitter as an audio output?

Makes sense to me; now can you tell me how to hack my Bluetooth so I can put a boom box in it? Is that a McIntosh boom box? Sounds soooo cool.

In regards to your RCA or Cinch question, see en.wikipedia.org/wiki/RCA_connector Cinch, is English for kinderspiel. In usage its its said; to cinch up. otherwise the general meaning is to make a firm connection. Why say Cinch instead of RCA connector? it depends on the language, the slang, the usage and how easy it is for the word to roll off the tongue.

I Love your videos. I have purchased one of these exact receivers. Is there a way to hack the range of the device? it's range is 10m. Can it be improved to say -... 20m?

I have a very similar Stereo (Hitachi TRK-W530E) which I have been meaning to modify with an internal bluetooth module such as this, but it runs from 8 D-cell/IEC R20 batteries which is inconvenient and expensive. I'm planning on replacing them with a single 12v rechargeable power pack but I'm confused as to which variety of battery would be appropriate for this application considering the runtime needed as well as the available space inside the compartment. May I ask what you would recommend?

Hallo sir ham Bluetooth ki jo internal sound hote ha who hm change kr sakte ha example = Bluetooth smooth, jb on hota ha

Very useful. Thank you :)

In Vojvodina, Serbia it's also called chinch.

whats the range of the bluetooth for that unit?

Dood you are pro! Just subbed 💯

Nokia (yes, the same Nokia [in]famously known for their mobile phones) made and sold hifi stereo equipment? I bet they must be ultra durable then. It's a shame that they never got released here in the US though.

Where can I purchase the bluetooth receiver used in this awesome video? Can you share a link or give model name

I'm using only the speakers when I wired an auxiliary cord straight to my phone it's very quiet the phone clearly doesn't make enough power how can I add a plug-in power supply

Guys guys... Those 2 dollar bluetooth receivers are total crap in my point of view. Am I the only one finding them to have very poor highs and no low end? Werent those meant for old bt headsets or handsfree devices? Better get the 4$ CSR8635 module. You will be impressed by the quality of the sound. I promise.

Will this charge your phone while it is on ?

i have a tape like that of Sony and i cant separate two speakers from both sides, it has two wires out from one speaker and its detachable. Is there any way i can use those speakers?

we use "cinch" in slovakia too.

In Serbia we call this connectors same like you in Germany, origin of name is probably from German language

I would like to add Bluetooth in Panasonic RX-DT690. There is no in-line/Aux port. What should I do?

Great idea 💡💡

good vids. how would you add an isolated female mini audio trrs socket to a boom box?

I just found one Stereo on the street. but already have a Mic input!! it save me some work if it still works.

Damn! I love German engineering! Subscribed!

Where is the link to the Bluethooth device you bought in Ebay?

PLEASE TELL ME; how can I hook up my MP3 player to my boombox speakers without soldering anything around inside.. I don't need Bluetooth device just a simple MP3 player to Boombox wiring connection.

Those USB chargers can be crazy noisy on both HF and VHF frequencies even when the battery is fully charged.

Sir where did you conection wires of Bluetooth audio in old tape area?? Please reply must

"...Laptop or computer"? FFR (for future reference), that didn't make sense. What _is_ a laptop, supposedly, if not a computer itself (pre-emptive defense: with that as their original primary function, as opposed to a smartphone, so don't go there about what smartphones are too)?

?would it be diffrant thing to highoutput and low out put speakers ect do you think ?

Will this work to connect Bluetooth headphones

I want that amp so much

My friend you are wrong. In Serbia a lot of German words are in use. Today some of English words. But tools are still named by German words. Also CINC we use to. RCA is used over ebay and some of new modern kids but we older ones still use those terms. I can tell you a lot of misuse of German words for tools because some people don't know that GEDORE is a name of company not a specific tool and a lot of people knows that but simply use that word for a specific tool. My Father is half German so my Grandmother use only German words so did I. I work in printshop and a lot of words are still German. Like Druck (press) or machine or Srafciger (guess what it is I wrote it on Serbian) and so on. We say Printing machine and USA use Printing Press so as you can see your German influence after WW2 is still here. German engineering is what fascinate me also Serbian old repairman are using skills like yours when repair tools or machines. I do not speak German but I am familiar with a lot of German frases. Good luck and keep with good videos...

This would work well with a Chromecast Audio in place of the Bluetooth too.

how can i unplug one speaker from a radio like this and convert to to 3.5mm?? is it possible..?? please help

my home DVD player has VCD,DVD AND USB options but I want an AUX connection how to modify it